61001

Properties

Appears in sequences

• Primes which can be expressed as concatenation of powers of 6 and 0's.at n=34A066597
• Primes p such that 2^p-1 and the p-th Fibonacci number have a common factor. Prime terms of A074776.at n=26A080050
• Primes of the form 1000*k + 1.at n=13A156655
• Primes that become squares when prefixed with a 5.at n=11A167738
• Primes having only {0, 1, 6} as digits.at n=23A199326
• Primes such that prime plus its digit sum is a perfect square.at n=24A230087
• Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=7A259005
• a(n) is the largest prime factor of 2^n + 5^n.at n=25A337429
• Counterclockwise square spiral constructed using the integers so that a(n) plus all other numbers currently visible from the current number equals n; start with a(0) = 0.at n=49A357985
• Prime numbersat n=6146